[SML] [EXTERNAL] Really bright red LED light source

[Sean McCarthy]

simply because it'll be less efficient.  If we only want red light out of
the thing, red emitters are all we need.  Using a primary red gel filters
out ~90%-98%, so of the lumens coming out of the source, only 2%-10% ends
up being useable.

On Thu, Apr 25, 2024 at 9:57 AM Paul Guncheon via Stagecraft <
stagecraft at theatrical.net> wrote:

> I'm not a lighting guy but is there some reason why one can't use gels?
>
> Laters,
>
> Paul 1
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